I have not been on for awhile, but have to report that my HD-820 LCD light display has failed and gone dark. What a bummer. The radio has been just sitting in my bedroom used as an alarm clock every weekday alarming me to wake up. It has worked fine since then except the one thing that seems to plague Cambridge Soundworks clock radio... the clock runs slow and loses time and you will alway have to reset the time to catch it up to current time every month or so. Now with the dead LCD display light, I cannot see the time clock to adjust it anymore no can I see what tuning frequencies I am on. Dang. Be warned... not reliable. Great sound for a table radio but now it is a pain to use with the dead light. Bought it from a reseller on Amazon.com (Infinity Sales) and they won't answer my emails about service. I will try Cambridge Soundworks soon but I don't think they will service it under warranty since I bought it from Infinity Sales who is not on their authorized dealers list.
02/27/2010 Update: Wow! It has been just over 2 years since I posted this problem with my 820HD radio. I have been just living with the dead LCD display light ever since I first posted about it here! I just used it to listen to the radio all this time and did not adjust the clock time nore alarms. And I never unplugged it to lose my settings. Anyway, I just dusted it off last night and was looking at the dead LCD screen as I turned it on and was blindly fiddling with it tuning in stations. Then something came over me and I was thinking what a piece of s_it this is and decided to see if I can cause the display light to come on by giving it a good fast hard whack right on top of the unit (where the snooze button is). I did that... and low and behold the LCD Display light came back on and the pretty blue screen background with white fonts started working again! Whoooweee! I was delighted to see that the LCD info was all working (implying that it was not a burnt out IC chip or logic problem). What this tells me is that it is probably some bad or loose connections to the LCD display module. The whack I gave it apparently vibrated the connector enought to scrap whatever oxidation on the contacts away to start conducting electricity again and the light came back on!
So if anyone with an 820HD radio has this light display problem... you might want to try this whack trick or if it really is a bad contacting connection, open the radio and clean and reset the contact connections to the LCD display module. The LCD module did not go bad as I had originally feared after all! Hope this info saves someone from trashing their 820HD radio! It has turned out to be a nice sounding radio and all using outdoor antenna. The only major flaw on mine though is that its clock runs slow and requires constant resetting to correct time. It does not keep accurate time (which seems to be a problem with all the Cambridge SoundWorks radios that I have). I wonder what is the main reason that they've discontinued this HD radio?
2nd Update 12/06/2010 - I stumbled upon this old thread again to say that the LCD display light went out again only after a a couple of months after I got it to come back on. I could not get the LCD light on this dang unit to light up again, so once again I cannot easily adjust time nor stations when I need to. It still sounds great for a little table radio, but it is a piece of crap for reliability. No wonder they discontinued it.
Words of wisdom, "The more you know, the more you know that you don't know."